Played tonight exclusively with my Bio 100 strung with TF Pro Red Code 18g.
I still like the syn-gut a little better, but I do like the poly. It is a bit more stiff than the syn-gut, bit it worked well in our doubles match. The poly doesn't seem to to have as much bite on a one handed backhand. Other than that, it felt really good. I think I may actually prefer it against a big server. It seems to have a little more control in that situation.
Can't wait to try out the hybrid with poly on the mains and syn-gut on the crosses.
Evil doers ... you face The Tick!